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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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There are more bacteria in your mouth than there are people in the world.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.